president obama and the white house treating this as an act of terrorism. no suspect in custody right now so where does the investigation stand? >> good evening to you brian. the f.b.i. is taking control of this investigation along with the boston joint terrorism task force. off to my left is a blast sight. the 15 block area will be locked down as bomb crews are scouring that area to look for information anything they can get to figure out how these bombs were made where they were placed in trash canisters that type of thing -- we heard from hospital officials talking about the injuries caused by shrapnel in the form of ball bearings so we've learned that about the types of bombs so far looking certainly to get more information on that as we can learn it. five uneks sploxploded devices found, brian. that's very crucial piece of information as they'll be able to see how these things are related together. i wanted to clear up something we were talking about earlier. there is one individual being questioned in connection to this. he's not being called a suspec